Personal water craft (or PWCs) have been around since the 1950s, and received a boost in popularity when the Kawasaki Jet Ski was released in 1973. Since then, we've seen the introduction of a number of makes and models, all boasting their own unique features. One of the latest, the BomBoard, is claimed to be the world's only modular PWC – and at a planned price of US$3,495, it could also be the cheapest.